Johannes M. J. Spruyt

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Eindhoven, NL

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Patents Grantslast 30 patents

Information Patent Grant
Color display tube with control grid positioning feature
- Patent number 4,337,409
- Issue date Jun 29, 1982
- U.S. Philips Corporation
- Antonius W. F. van der Heijden
- H01 - BASIC ELECTRIC ELEMENTS